Ok, well optical illusions aside, I believe that it is likely only as large as the collector there, with very little taper.
I know that at 8500+ rpm, one cylinder firing at a time is pretty irrelevant
when talking about flow characteristics of a merge point.
I know what he is saying though, and I trust they did their homework.
That's why we have dyno's and drag strips!
We get to see who takes the most pride in their product, and which products are the best bang for the buck.
The "k" market is really rolling now, not trying to cause shit.
I have faith that this header will out-perform most or all of the mass-market
types like dcrh etc.
I think toda has a great design, but just waiting for someone to meet/exceed
that level for less money.
Companies like rmf, ssr, dtr, and hardcore automotive are paving the road.
IPS can not be left out either.